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一种基于混沌序列的低轨卫通同步广播信道设计方法

Year of Publication 12.08.2025

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Patent

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种随机突发的无线通信装置

Year of Publication 20.10.2017

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Patent

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基于隐蔽信道的直扩小跳频通信

by 潘申富, 李振东, 梁庆林
Published in Tongxin Xuebao (2003)

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Journal Article

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モンゴル國：ウランバ一トル市の水行政 ―水危機への대응(對應)

by Hiroshi Satoh
Published in 공공정책연구 (30.06.2013)

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Journal Article

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어항 정수기

Year of Publication 02.03.1989

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Patent

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방수펌프를 이용한 잠수직 어항 정수장치

Year of Publication 25.08.1988

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Patent